Feed seasonally. Feed safely.

We all want to support garden birds and create outdoor spaces where wildlife can thrive. However, recent research highlights that some species—such as Greenfinches—are in serious decline due to disease.

The good news is that small, simple changes to how we feed birds can make a big difference.

What’s the problem?

Some garden birds are being affected by a highly contagious disease called trichomonosis. This disease spreads easily where birds gather closely together—especially around feeders.

How you can help

We can all help reduce the spread of disease by following two key principles:

1. Feed seasonally

In summer and autumn, the risk of disease transmission is higher. Fortunately, this is also when natural food sources—like seeds and insects—are plentiful.

1 May – 31 October

• Pause feeding seeds and peanuts

• You can still offer small amounts of mealworms, fatballs, or suet

1 November – 30 April

• Offer a full range of bird foods, including seeds and peanuts

2. Feed safely

Bird feeders can quickly become hotspots for disease if not managed properly. Good hygiene and thoughtful placement are essential.

• Clean feeders and water baths weekly
  Remove old food and droppings from beneath feeding areas

• Move feeders regularly
  Change their location each week to prevent build-up of contaminated debris

• Spread feeders out
  If using more than one, place them in different areas to reduce crowding

• Avoid placing feeders under roosting spots
  This helps prevent contamination from droppings

• Avoid flat-surface feeders
  Bird tables, trays, and window feeders can allow contaminated food to accumulate

• Feed in moderation
  Only put out what birds can eat within one to two days

• Keep food dry
  Damp conditions encourage disease—use feeders that protect food from rain

• Refresh water daily
  Only provide water if it can be changed every day, using fresh tap water

Support birds naturally

One of the best long-term ways to help birds is by encouraging natural feeding. Plant bird-friendly species such as sunflowers, teasels, and ivy to provide seeds and shelter.

Why this matters

Greenfinch populations have declined by over 65% in the last three decades. Once a common sight in gardens, they have dropped significantly in national bird counts.

By feeding birds more carefully and seasonally, we can all play a part in protecting them and helping our garden wildlife thrive.